Archer's Dart Agrotis vestigialis
Wingspan 30-35 mm.
A variable but quite distinctive moth, this species has a mainly coastal distribution all around Britain, occasionally spreading a little inland in places.
It prefers sandhills, and in those places where it occurs inland, dry sandy heaths or breckland.
There is one generation, which flies from July to September, and the overwintering larvae feed on low plants such as bedstraw (Galium) and stitchwort (Stellarium) as well as grasses.